Be careful on the bit through Stacksteads, few local reports in the last few months of bikes taken off people. Lee Quarry is also one of the areas targeted for bike muggings.
As I understand it the cycleway gets you into Stubylee Park, then on to the bridleway that runs at the bottom of Lee Quarry, you then drop into Stacksteads and decide if you are going to go through the tunnels. You can get behind the shops in Waterfoot and after a quick dash on the main road go through the colour factory to get back on to the cycle route into Rawtenstall just before Tesco
Just looked at the map, I doubt section 8 and 9 exist atm